For starters, I just folded an Amp in half with no issue. The overmold stretched along with the core, no separation or damage.

I'm guessing because of the density, the overmold wants to hold a tune more so than other plastics. It didn't pop right back to shape, but with very little effort I got it back to normal non-taco. The action is less like the repeated forceful tuning of most plastics, and more like a quick one-bend adjustment that you can then fine-tune.

Anyway, I've got one of my Amps here and I tuned one side RR under-easy and one side TB-tasty.

I threw the AMP a few times on Saturday. The disc feels totally sweet in my hand. It's very flippy though. I haven't tried to roll it yet but I am very curious to see how it rolls. Too understable for air shots for me. I would have a hard time trusting it.

Just got my discnation 1st run amps in today. Both 170. I took one out to the field for a few throws and to get an intial reaction. First things first, I regularly throw RHBH 350-380 max and have been throwing my volts anywhere from 280-340 pretty consistently. There was no wind present, but I was also not warmed up and wearing a bulky jacket so my test throws were considerably lower power than normal.

At the 260-320 range I was throwing my 170g Amp it flew a cross between a stable Avenger SS and a beat up TeeBird. Was giving it some height because out of the hand it definitely flipped up, so if thrown flat and low it would turn into the ground. Thrown on a hyzer, like others have said, it flips up to straight and flat and tracks about 300' with little fade. It didn't seem to have as much right to left action as the volt, and definitely didnt resemble the hard right turning flight of a roadrunner (at that power level at least). Definitely something to be done with this disc and seems like a great compliment to the volt since it should be shaping completely different lines without being 5 steps apart on the stability scale.

If you tune the drivers, start with shallow bends. I wanted to stress-test it so (as ZJ observed) I kept my Amp bent in half, then flexed it a bunch trying to demonstrate how the overmold stretched instead of breaking or separating. The overmold was fine. Took a few minutes, same as any other similarly-abused premium disc, to get the whole disc back to normal table-level.

Shallow bends should do the trick for tuning the MVP drivers. No need to be gentle, it just doesn't take as deep of a bend as 1-piece discs.